Suimeikan sources its waters from the Gero hot springs, which is considered one of the three best hot springs in Japan and has long been a popular destination for visitors who wish to soak in its healing waters. It has six different communal baths for guests to enjoy including cypress, outdoor, private, and scenic baths with panoramic views of the city. Suimeikan's hot water is a clear, colorless, slightly sulfur-scented alkaline simple spring with a pH of 9.3, which has a natural soapy effect and leaves the skin smooth and smooth.
The inn consists of four large buildings with 264 guest rooms.Various types of rooms are available, including Japanese-style rooms with tatami mats and futons, Western-style rooms with beds and wooden flooring, rooms with open-air baths, detached rooms, special rooms, and rooms for distinguished guests.